SURFACE EMITTING LASER ELEMENT ARRAY
First Claim
1. A surface emitting laser element array comprising:
- a plurality of surface emitting laser elements on a same substrate each comprising at least a mesa post formed of a laminated structure including an active layer formed of a semiconductor layer,wherein each of said surface emitting laser elements comprises a first electrode, a second electrode, and a third electrode, said second electrode and said third electrode having a polarity different from that of the first electrode;
said first electrode is arranged on the mesa post;
said second electrode is arranged on one surface of the substrate same as that of the first electrode;
said third electrode is arranged on the other surface of the substrate opposite to that of the first electrode and the second electrode, and is provided as a common electrode of the surface emitting laser elements; and
an electric current is applied to the active layer using the first electrode and the second electrode.
1 Assignment
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Accused Products
Abstract
A surface emitting laser element array comprises a plurality of surface emitting laser elements (15) on a same substrate (1) each comprising a mesa post formed of a laminated structure including an active layer (4) for reducing a crosstalk between the surface emitting laser elements constituting the surface emitting laser element array, and for improving a high speed response, wherein each of the surface emitting laser elements (15) comprises a first electrode (9), a second electrode (10) and a third electrode (11) that have a polarity different from that of the first electrode (9); the first electrode (9) is arranged on the mesa post; the second electrode (10) is arranged on one surface of the substrate (1) same as that of the first electrode (9); the third electrode (11) is arranged on the other surface of the substrate (1) opposite to that of the first electrode and the second electrode (9, 10) and is provided as a common electrode of the surface emitting laser elements (15); and an electric current is applied to the active layer (4) using the first electrode (9) and the second electrode (10).
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Citations
13 Claims
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1. A surface emitting laser element array comprising:
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a plurality of surface emitting laser elements on a same substrate each comprising at least a mesa post formed of a laminated structure including an active layer formed of a semiconductor layer, wherein each of said surface emitting laser elements comprises a first electrode, a second electrode, and a third electrode, said second electrode and said third electrode having a polarity different from that of the first electrode; said first electrode is arranged on the mesa post; said second electrode is arranged on one surface of the substrate same as that of the first electrode; said third electrode is arranged on the other surface of the substrate opposite to that of the first electrode and the second electrode, and is provided as a common electrode of the surface emitting laser elements; and an electric current is applied to the active layer using the first electrode and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification